Physics Practice Test
1. Which physical quantity is scalar in nature?
A. 3:42 PM
B. 23 m/sec; east
C. 723 Nm; 216 degrees
D. 34 km/sec; sin
... [Show More] (120 degrees)
2. A bicycle trip of 680 m takes 12.6 seconds. What is the average speed of the bicycle?
A. 53.97 m/sec
B. 8,568 m/sec
C. 0.054 km/min
D. 8.57 m/sec
3. A go-cart has an initial speed of 23.4 m/sec. Fifteen seconds later the go-cart has a final
speed of 46.8 m/sec. What is the magnitude of the go-cart’s acceleration?
A. 702 m/sec2
B. 1.56 m/sec2
C. 362.7 m/sec2
D. 2.56 m/sec2
4. You walk for 15 minutes at 3.8 m/sec and then decide to run for 12 minutes at 2.5 m/sec.
What is your average speed?
A. 3.22 m/sec
B. 3.15 m/sec
C. 13.5 m/sec
D. 1.125 m/sec
5. A cannon is placed on the edge of a cliff that is 300 m tall. The barrel of the cannon is
parallel to the ground below. If a cannonball leaves the barrel in a horizontal direction with a
velocity of 115 m/sec, how far out from the base of the cliff will the cannonball land?
A. 450.0 m
B. 630.0 m
C. 900.0 m
D. 7,040.3 m
6. An object has a mass of 1,285 g. Determine the weight of the object in newtons.
A. 12,593 N
B. 125.93 N
C. 12.59 N
D. 1,259.3 N
7. A car that weighs 15,000 N is initially moving at 60 km/hr when the brakes are applied.
The car is brought to a stop in 30 m. Assuming the force applied by the brakes is constant,
determine the magnitude of the braking force.
A. 7,086.7 N
B. 900,000 N
C. 1,500,000 N
D. 30,000 N
8. A hockey puck of mass 0.450 kg is sliding across the ice. The puck is initially moving at
28 m/sec. However, because of the frictional force between the puck and the ice, the motion of
the puck is stopped in
15.8 seconds. Determine the magnitude of the frictional force.
A. 1.65 N
B. 7.81 N
C. 0.80 N
D. 5.49 N
9. A race car has an initial velocity of 200 m/sec and over 4 seconds its velocity increases to
1200 m/sec. What is its acceleration?
A. 100 m/sec2
B. 150 m/sec2
C. 200 m/sec2
D. 250 m/sec2
10. What is the kinetic energy of a 1,200-kg roadster moving at a rate of 88 km/hr? [Show Less]